Home / 105,415.27-158,144.07-38,855.74

Finding the Fourth Proportional to 105,415.27, 158,144.07 and 38,855.74

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Solution

The fourth proportional to 105,415.27, 158,144.07 and 38,855.74 is: 58,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,415.27 : 158,144.07 = 38,855.74 : x
  2. Step 2: Convert to fraction form
    105,415.27/158,144.07 = 38,855.74/x
  3. Step 3: Cross multiply
    105,415.27x = 158,144.07 × 38,855.74
  4. Step 4: Simplify right side
    105,415.27x = 6,144,804,866.46
  5. Step 5: Solve for x
    x = 6,144,804,866.46/105,415.27
  6. Step 6: Final answer
    x = 58,291.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.